| 简介 |
Magneto-optic recording medium comprising : a first magnetic layer (103) formed on a transparent substrate (101) for reading information recorded on a second magnetic layer (104), the first magnetic layer having an easy axis of magnetization in a direction (X) parallel to a surface thereof at a room temperature, the easy axis of magnetization being changed into a perpendicular direction (Y) from the in-plane direction when heated up to a predetermined temperature higher than the room temperature, the first magnetic layer being made of a rare earth and a 3d transition metal in which an exchange energy between the rare earth metal and the 3d transition metal is made to be small, and a second magnetic layer (104) provided on the first layer for magneto-optically recording information and transferring the information to the first magnetic layer for reading out the information, the second magnetic layer being made of a rare earth 3d transition metal alloy having an easy axis of magnetization in a direction (Y) perpendicular a surface thereof at a room temperature. |
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